97039139 has 4 divisors (see below), whose sum is σ = 101258256. Its totient is φ = 92820024.

The previous prime is 97039109. The next prime is 97039147. The reversal of 97039139 is 93193079.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 97039139 - 2⁸ = 97038883 is a prime.

It is a super-2 number, since 2×97039139² = 18833188995722642, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 97039096 and 97039105.

It is not an unprimeable number, because it can be changed into a prime (97039109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2109524 + ... + 2109569.

It is an arithmetic number, because the mean of its divisors is an integer number (25314564).

Almost surely, 2^97039139 is an apocalyptic number.

97039139 is a deficient number, since it is larger than the sum of its proper divisors (4219117).

97039139 is a wasteful number, since it uses less digits than its factorization.

97039139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4219116.

The product of its (nonzero) digits is 45927, while the sum is 41.

The square root of 97039139 is about 9850.8445830802. The cubic root of 97039139 is about 459.5318788484.

The spelling of 97039139 in words is "ninety-seven million, thirty-nine thousand, one hundred thirty-nine".